[Bug 197035] sysutils/bbcp: segmentation fault and core dump when running latest version (20150113)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197035

--- Comment #7 from Chris Hutchinson <portmaster at bsdforge.com> ---
(In reply to lampa from comment #6)
> Problem is probably with ipv6 bcpp code, try -4 argument
> 
> The reason of core dump is:
> 
>  n = getaddrinfo(iP, 0, hostHints, &rP);
> 
> It fails with n==3 (EAI_BADFLAGS) and then MyHost is NULL which results 
> in segmentation fault in strdup().
> 
> The reason of getaddrinfo failure is that hostHints.ai_flags contains
> AI_V4MAPPED | AI_CANONNAME 
> AI_V4MAPPED flag is rejected if net.inet6.v6only==1
> 
> But fixing this was not sufficient, remote bcpp started listening on TCP6
> socket, but local bcpp couldn't connect.

Thanks for the hints, lampa!
I'll take those pointers, and see if I can cobble (in) some (better && FreeBSD)
IPv6 support.
If that appears unfeasible. I'll see if I can convert it all to strictly
IPv4.

Thanks again!

--Chris

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